Calculator Tools/Scientific Calculator
Scientific Calculator
Trigonometric functions, logarithms, and scientific calculations
Scientific Calculator
0
Scientific Calculator Guide
Learn how to use the scientific calculator functions
What is Scientific Calculator?
The Scientific Calculator provides advanced mathematical functions including trigonometry (sin, cos, tan), logarithms (log, ln), exponentials, powers, roots, factorials, and constants. Perfect for students, engineers, and anyone needing complex calculations.
How to Use
- Enter numbers and operators using the keypad
- Select DEG or RAD mode for angle calculations
- Use scientific functions like sin, cos, log, sqrt
- Press = to calculate, use memory functions to store values
Practical Tips
- Toggle between DEG and RAD for trigonometric calculations
- Use parentheses to control order of operations
- Memory functions (MC, MR, M+, M-) help with complex calculations
Accuracy & Limitations
Calculations use JavaScript floating-point precision (about 15-17 significant digits). Results are displayed with up to 10 significant figures. Very large factorials (>170!) will return Infinity.
Frequently Asked Questions
What's the difference between DEG and RAD mode?
DEG (degrees) measures angles in the 0-360° system familiar from everyday use. RAD (radians) measures angles where 2π = 360°, commonly used in mathematics and physics. Use DEG for practical applications, RAD for calculus and advanced math.
Why does sin(90) give 1 in DEG mode but not in RAD mode?
In DEG mode, sin(90) = sin(90°) = 1, which is correct. In RAD mode, sin(90) calculates sin(90 radians), which is a completely different angle (about 5156°). For sin(π/2) = 1 in RAD mode, enter the actual radian value.
What's the difference between log and ln?
log is the common logarithm (base 10) - log(100) = 2 because 10² = 100. ln is the natural logarithm (base e ≈ 2.718) - used extensively in calculus, statistics, and natural growth calculations. ln(e) = 1.
How do I use the memory functions?
MC clears memory, MR recalls the stored value, M+ adds the current display to memory, M- subtracts from memory. These are useful for storing intermediate results in complex calculations without writing them down.
Why do large factorials show 'Infinity'?
Factorials grow extremely fast - 170! already exceeds JavaScript's maximum representable number (about 1.8×10³⁰⁸). For factorials larger than 170!, the result overflows to Infinity. For such large calculations, specialized mathematical software is needed.